Email this article EFISIENSI METODE MULTI SOIL LAYERING (MSL) DALAM PENYISIHAN COD DARI LIMBAH CAIR HOTEL (Studi Kasus: Hotel X Padang)
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DOI: https://doi.org/10.25077/dampak.9.2.98-105.2012
Copyright (c) 2012 Shinta Elystia, Shinta Indah, Denny Helard
Abstract
ABSTRAK
Dalam penelitian dilakukan pengolahan limbah cair Hotel yang bersumber dari dapur dan laundri dengan metode Multi Soil Layering (MSL). Tujuan penelitian ini untuk menentukan efisiensi penyisihan COD dan mempelajari pengaruh faktor variasi material organik dalam campuran tanah pada lapisan anaerob dan variasi Hydraulic Loading Rate (HLR) terhadap efisiensi pengolahan limbah cair hotel dengan metode MSL. Dua buah reaktor MSL berdimensi 50 x 15 x 100 cm dengan lapisan batuan yang sama pada kedua reaktor berupa kerikil berukuran 35 mm serta lapisan anaerob berupa campuran tanah dengan arang (reaktor 1) dan campuran tanah dengan serbuk gergaji (reaktor 2) dengan rasio komposisi 2 : 1. Limbah dialirkan pada masing-masing reaktor dengan variasi HLR 500, 750, dan 1.000 l/m2hari. Konsentrasi COD sebelum diolah adalah 132,600201,240 mg/l, setelah diolah dengan MSL konsentrasi berubah menjadi 12,48088,920 mg/l. Secara umum, variasi material organik dalam campuran tanah tidak begitu berpengaruh pada penyisihan COD. Variasi HLR cukup berpengaruh, dimana HLR 500 l/m2hari memberikan efisiensi penyisihan COD yang lebih tinggi. Efisiensi penyisihan COD yang diperoleh pada penelitian ini berturut-turut pada reactor 1 berkisar antara 55 -90 % dan pada reactor 2 berkisar antara 56-89%. Hasil menunjukkan bahwa kedua reaktor mampu menyisihkan COD pada limbah cair hotel.
Kata Kunci: COD, limbah cair hotel, multi soil layering (MSL)
ABSTRACT
Research COD removal from hotel wastewater stemmed from laundry and kitchen with Multi Soil Layering method (MSL) was conducted. The aim were to observe COD removal efficiency and to study the effect of organic material variation in soil as the anaerob layer as well as the effect of various hydraulic loading rate (HLR). In this research, there were two MSL reactors with dimension of 50 x 15 x 100 cm. Aerob layers of both reactors in the form of gravel 3-5 mm sized while anaerob layers are composed from soil mixed with charcoal (reactor 1) and soil mixed with sawdust (reactor 2) with ratio 2:1. HLR of wastewater for each reactor are 500, 750, and 1.000 l/m2day. Concentration of COD was 132,600-201,240 mg/l. COD concentration successively reduced to 12,480-88,920 mg/l.This result indicated both reactors can cast aside COD and also neutralize hotel liquid waste pH. In general, organic material variation of in soil mixture, that is sawdust and charcoal did not show any significant influence. HLR of 500 l / m2/day allowed the best removal efficiency at each contaminant parameters. As a whole efficiency removal of COD at this research successively at reactor 1 ranged from 55-90%, and 56-89%.
Key Words:COD, hotel wastewater, multi soil layering (MSL)
Dalam penelitian dilakukan pengolahan limbah cair Hotel yang bersumber dari dapur dan laundri dengan metode Multi Soil Layering (MSL). Tujuan penelitian ini untuk menentukan efisiensi penyisihan COD dan mempelajari pengaruh faktor variasi material organik dalam campuran tanah pada lapisan anaerob dan variasi Hydraulic Loading Rate (HLR) terhadap efisiensi pengolahan limbah cair hotel dengan metode MSL. Dua buah reaktor MSL berdimensi 50 x 15 x 100 cm dengan lapisan batuan yang sama pada kedua reaktor berupa kerikil berukuran 35 mm serta lapisan anaerob berupa campuran tanah dengan arang (reaktor 1) dan campuran tanah dengan serbuk gergaji (reaktor 2) dengan rasio komposisi 2 : 1. Limbah dialirkan pada masing-masing reaktor dengan variasi HLR 500, 750, dan 1.000 l/m2hari. Konsentrasi COD sebelum diolah adalah 132,600201,240 mg/l, setelah diolah dengan MSL konsentrasi berubah menjadi 12,48088,920 mg/l. Secara umum, variasi material organik dalam campuran tanah tidak begitu berpengaruh pada penyisihan COD. Variasi HLR cukup berpengaruh, dimana HLR 500 l/m2hari memberikan efisiensi penyisihan COD yang lebih tinggi. Efisiensi penyisihan COD yang diperoleh pada penelitian ini berturut-turut pada reactor 1 berkisar antara 55 -90 % dan pada reactor 2 berkisar antara 56-89%. Hasil menunjukkan bahwa kedua reaktor mampu menyisihkan COD pada limbah cair hotel.
Kata Kunci: COD, limbah cair hotel, multi soil layering (MSL)
ABSTRACT
Research COD removal from hotel wastewater stemmed from laundry and kitchen with Multi Soil Layering method (MSL) was conducted. The aim were to observe COD removal efficiency and to study the effect of organic material variation in soil as the anaerob layer as well as the effect of various hydraulic loading rate (HLR). In this research, there were two MSL reactors with dimension of 50 x 15 x 100 cm. Aerob layers of both reactors in the form of gravel 3-5 mm sized while anaerob layers are composed from soil mixed with charcoal (reactor 1) and soil mixed with sawdust (reactor 2) with ratio 2:1. HLR of wastewater for each reactor are 500, 750, and 1.000 l/m2day. Concentration of COD was 132,600-201,240 mg/l. COD concentration successively reduced to 12,480-88,920 mg/l.This result indicated both reactors can cast aside COD and also neutralize hotel liquid waste pH. In general, organic material variation of in soil mixture, that is sawdust and charcoal did not show any significant influence. HLR of 500 l / m2/day allowed the best removal efficiency at each contaminant parameters. As a whole efficiency removal of COD at this research successively at reactor 1 ranged from 55-90%, and 56-89%.
Key Words:COD, hotel wastewater, multi soil layering (MSL)
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